September Weather in Usinsk RussiaDaily high temperatures decrease by 13°F, from 53°F to 40°F, rarely falling below 33°F or exceeding 63°F. Daily low temperatures decrease by 9°F, from 40°F to 31°F, rarely falling below 23°F or exceeding 49°F. For reference, on July 8, the hottest day of the year, temperatures in Usinsk typically range from 50°F to 66°F, while on January 13, the coldest day of the year, they range from -12°F to 1°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. Fermont, Canada (3,736 miles away) is the far-away foreign place with temperatures most similar to Usinsk (view comparison). CloudsThe month of September in Usinsk experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 67% to 76%. The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 33% of the time. For reference, on December 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 88%, while on July 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 47%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Usinsk, the chance of a wet day over the course of September is gradually decreasing, starting the month at 35% and ending it at 33%. For reference, the year's highest daily chance of a wet day is 37% on August 23, and its lowest chance is 14% on February 7. Over the course of September in Usinsk, the chance of a day with only rain decreases from 35% to 25%, the chance of a day with mixed snow and rain increases from 0% to 3%, and the chance of a day with only snow increases from 0% to 4%. RainfallTo show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day rainfall during September in Usinsk is decreasing, starting the month at 2.5 inches, when it rarely exceeds 4.2 inches or falls below 1.1 inches, and ending the month at 1.5 inches, when it rarely exceeds 2.9 inches or falls below 0.5 inches. SnowfallAs with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day snowfall during September in Usinsk is rapidly increasing, starting the month at 0.1 inches, when it rarely exceeds 0.2 inches or falls below -0.0 inches, and ending the month at 3.7 inches, when it rarely exceeds 8.8 inches or falls below 0.4 inches. SunDue to its extreme latitude, Usinsk experiences polar day (also known as the midnight Sun) during the summer. The precise start and end dates of polar day and night vary from year to year and depend on the precise location and elevation of the observer, and the local topography. Neither polar day nor polar night occur during the month of September. Over the course of September in Usinsk, the length of the day is very rapidly decreasing. From the start to the end of the month, the length of the day decreases by 3 hours, 24 minutes, implying an average daily decrease of 7 minutes, 2 seconds, and weekly decrease of 49 minutes, 14 seconds. The shortest day of the month is September 30, with 11 hours, 22 minutes of daylight and the longest day is September 1, with 14 hours, 46 minutes of daylight. The earliest sunrise of the month in Usinsk is 3:45 AM on September 1 and the latest sunrise is 1 hour, 32 minutes later at 5:18 AM on September 30. The latest sunset is 6:31 PM on September 1 and the earliest sunset is 1 hour, 52 minutes earlier at 4:39 PM on September 30. Daylight saving time is not observed in Usinsk during 2024. The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation. MoonThe figure below presents a compact representation of key lunar data for September 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
HumidityWe base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. The chance that a given day will be muggy in Usinsk is essentially constant during September, remaining around 0% throughout. For reference, on July 13, the muggiest day of the year, there are muggy conditions 7% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time. WindThis section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. The average hourly wind speed in Usinsk is gradually increasing during September, increasing from 8.0 miles per hour to 8.7 miles per hour over the course of the month. For reference, on March 8, the windiest day of the year, the daily average wind speed is 11.1 miles per hour, while on July 28, the calmest day of the year, the daily average wind speed is 7.7 miles per hour. The wind direction in Usinsk during September is predominantly out of the west from September 1 to September 4 and the south from September 4 to September 30. Growing SeasonDefinitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). The growing season in Usinsk typically lasts for 3.2 months (99 days), from around June 4 to around September 11, rarely starting before May 19 or after June 19, and rarely ending before August 24 or after September 28. During September in Usinsk, the chance that a given day is within the growing season is very rapidly decreasing falling from 77% to 8% over the course of the month. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F. The average accumulated growing degree days in Usinsk are essentially constant during September, remaining within 12°F of 686°F throughout. Solar EnergyThis section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation. The average daily incident shortwave solar energy in Usinsk is decreasing during September, falling by 1.4 kWh, from 2.6 kWh to 1.2 kWh, over the course of the month. TopographyFor the purposes of this report, the geographical coordinates of Usinsk are 65.994 deg latitude, 57.528 deg longitude, and 194 ft elevation. The topography within 2 miles of Usinsk contains only modest variations in elevation, with a maximum elevation change of 121 feet and an average elevation above sea level of 192 feet. Within 10 miles also contains only modest variations in elevation (331 feet). Within 50 miles contains only modest variations in elevation (676 feet). The area within 2 miles of Usinsk is covered by herbaceous vegetation (27%), trees (24%), grassland (20%), and water (18%), within 10 miles by trees (33%) and herbaceous vegetation (32%), and within 50 miles by trees (72%) and herbaceous vegetation (13%). Data SourcesThis report illustrates the typical weather in Usinsk, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Usinsk is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Usinsk, according to the International Standard Atmosphere . All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . Time zones for airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Please review our full terms contained on our Terms of Service page. |